[INFO] crate tin-drummer 1.0.1 is already in cache
[INFO] testing tin-drummer-1.0.1 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate tin-drummer 1.0.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate tin-drummer 1.0.1 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-12/source/.cargo/config
[INFO] started tweaking crates.io crate tin-drummer 1.0.1
[INFO] finished tweaking crates.io crate tin-drummer 1.0.1
[INFO] tweaked toml for crates.io crate tin-drummer 1.0.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ed0147f2c4899e94726a1b9b9c6e6fcb32126c32880dd93a42c44dd7db0d273e
[INFO] running `Command { std: "docker" "start" "-a" "ed0147f2c4899e94726a1b9b9c6e6fcb32126c32880dd93a42c44dd7db0d273e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed0147f2c4899e94726a1b9b9c6e6fcb32126c32880dd93a42c44dd7db0d273e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed0147f2c4899e94726a1b9b9c6e6fcb32126c32880dd93a42c44dd7db0d273e", kill_on_drop: false }`
[INFO] [stdout] ed0147f2c4899e94726a1b9b9c6e6fcb32126c32880dd93a42c44dd7db0d273e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 860f43bb08e0d4f35bd04c6a642d9d7c3167bf90cd2a2d31cf4605450f94e77a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "860f43bb08e0d4f35bd04c6a642d9d7c3167bf90cd2a2d31cf4605450f94e77a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling globset v0.2.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling clap v2.33.2
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling ignore v0.2.2
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling tin-drummer v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unknown lint: `match_ref_pats`
[INFO] [stdout]  --> src/lib.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![allow(match_ref_pats)]
[INFO] [stdout]   |          ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `too_many_arguments`
[INFO] [stdout]  --> src/lib.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![allow(too_many_arguments)]
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(integer_atomics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]   --> src/lib.rs:95:13
[INFO] [stdout]    |
[INFO] [stdout] 95 | / ...   lazy_static! {
[INFO] [stdout] 96 | | ...       static ref REGEX: Regex = 
[INFO] [stdout] 97 | | ...           Regex::new(r".*?\.(a|la|lo|o|ll|keter|bc|dyn_o|d|rlib|crate|min\.js|hi|dyn_hi|S|jsexe|webapp|js\.externs|ibc|toc|aux|fdb_la...
[INFO] [stdout] 98 | | ...           .unwrap();
[INFO] [stdout] 99 | | ...   }
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]    --> src/lib.rs:101:13
[INFO] [stdout]     |
[INFO] [stdout] 101 | /             lazy_static! {
[INFO] [stdout] 102 | |                 static ref REGEX_GITIGNORE: Regex = 
[INFO] [stdout] 103 | |                     Regex::new(r".*?\.(stats|conf|h|out|cache.*|dat|pc|info|\.js)$")
[INFO] [stdout] 104 | |                     .unwrap();
[INFO] [stdout] 105 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tin-drummer`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "860f43bb08e0d4f35bd04c6a642d9d7c3167bf90cd2a2d31cf4605450f94e77a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "860f43bb08e0d4f35bd04c6a642d9d7c3167bf90cd2a2d31cf4605450f94e77a", kill_on_drop: false }`
[INFO] [stdout] 860f43bb08e0d4f35bd04c6a642d9d7c3167bf90cd2a2d31cf4605450f94e77a